[알고리즘] for 문 이용하여 별 찍기

import java.util.Scanner;
 
public class java2439 {
 
    public static void main(String[] args){
        Scanner scan = new Scanner(System.in);
 
        int num = scan.nextInt();
 
        for(int i=0; i<num; i++) {
            for(int k=0;k<num-i-1;k++) {    
                System.out.print(" ");
            }
            for(int j=0;j<i+1;j++) {
                System.out.print("*");
            }
            System.out.print("\n");
        }
    
    }

-백준